סמינר באסטרונומיה ובאסטרופיזיקה: Flow of diffuse gas in quiescent galactic centres

Abstract: 

Recent observations probed the distribution of gas around our galactic centre, and tidal disruption events gave us information about centres of other quiescent galaxies. Galactic centres are different from the remainder of the galaxy, in that gas is continuously supplied by young and massive stars. I will present an analytic model for a steady state, spherically symmetric, adiabatic flow of gas in a galactic centre, where mass and energy is supplied by a distribution of stars, and gravity is due to a central point mass. I will also show how this model can resolve some issues with previous analyses of the observational data.

מארגת הסמינר: פרופ' שרה בק